xDuoo MH-02

USB DAC & Tube Headphone Amplifier

• USB DAC & Tube Headphone Amplifier

• USB DAC Decoding

• CS43131 DAC Chip

• Enhanced sound quality thanks to two 6J1 tubes

• Class-A transistor amplifier

• Gain switch for customized performance

• Line-out as a preamplifier

• High-quality audio capacitors

• Integrated protection circuit

USB DAC & Tube Headphone Amplifier

The xDuoo MH-02 CS43131 USB DAC & Tube Headphone Amplifier combines the versatility of a USB DAC with the warmth of tube amplification, delivering an unparalleled listening experience.

USB DAC Decoding

Experience seamless connectivity thanks to support for USB decoding from computers, smartphones (iOS/Android), tablets, hi-fi players, and more. Enjoy high-fidelity audio with PCM up to 32-bit/384 kHz, DSD256, and MQA up to 32-bit/384 kHz from a wide range of devices.

CS43131 DAC chip

Powered by the renowned CS43131 DAC chip, the MH-02 ensures flawless audio playback with exceptional clarity and detail thanks to its extremely low noise and outstanding resolution.

Enhanced Sound via Two 6J1 Tubes

The two 6J1 tubes serve as a preamplifier and enrich your sound with the sweet and exquisite tonal character characteristic of tube amplification.

Class-A Transistor Amplifier

Equipped with transistors for Class-A buffering, the MH-02 delivers a robust output power of up to 1300 mW and effortlessly drives a wide variety of headphones.

Gain Switch for Customized Performance

Customize your listening experience with a two-step gain switch to ensure perfect matching with headphones of varying impedances—for optimal audio output tailored to your preferences.

Line output as a preamp

Use the tube- and volume-controlled line output as a preamp for audio amplifiers or active speakers and enhance sound quality with transparent and smooth tones.

High-Quality Audio Capacitors

Experience a transparent and smooth sound with Japanese ELNA capacitors as coupling capacitors, while Japanese RUBYCON capacitors deliver soft and warm tones with excellent high frequencies.

Integrated protection circuit

Enjoy peace of mind thanks to the integrated relay mute circuit, which ensures a seamless transition when powering on the amplifier, protects the tubes from pop noises, and ensures optimal performance.

Technical Details

Power supply: DC 12 V/2 A

Supported operating systems: Windows, Linux, macOS X, iOS, Android

Supported sample rates: PCM 16–32 bit/44.1 kHz–384 kHz, DSD64–256

Output power: 1300 mW (32 Ω load)

Frequency response: 10 Hz–60 kHz (±0.5 dB)

Gain: +12/18 dB

THD+N: ≤0.8% (1 kHz, 32 Ω load)

Signal-to-noise ratio: 118 dB

Crosstalk: ≥70 dB

Dimensions: 12 x 7.8 x 4.0 cm

Weight: 0.35 kg

Package contents

1 x xDuoo MH-02

User manual